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Nikolay [14]
2 years ago
15

2,10,50 geometric sequence

Mathematics
1 answer:
ValentinkaMS [17]2 years ago
4 0
The next three are; 250, 1,250, and 6,250
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4) 20% of 65 *<br> (Can someone wander this asap)
SVETLANKA909090 [29]

Answer:

13

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
When 3/11 is written as a decimal, how many digits are in the smallest sequence of repeating digits?
Anna11 [10]
It's b, 2 
The reason is because 3/11=0.27 that repeats the 27 over again
7 0
3 years ago
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a) Estimate the volume of the solid that lies below the surface z = 7x + 5y2 and above the rectangle R = [0, 2]⨯[0, 4]. Use a Ri
SSSSS [86.1K]

In the x direction we consider the m=2 subintervals [0, 1] and [1, 2] (each with length 1), while in the y direction we consider the n=2 subintervals [0, 2] and [2, 4] (with length 2). Then the lower right corners of the cells in the partition of R are (1, 0), (2, 0), (1, 2), (2, 2).

Let f(x,y)=7x+5y^2. The volume of the solid is approximately

\displaystyle\iint_Rf(x,y)\,\mathrm dx\,\mathrm dy\approx f(1,0)\cdot1\cdot2+f(2,0)\cdot1\cdot2+f(1,2)\cdot1\cdot2+f(2,2)\cdot1\cdot2=\boxed{164}

###

More generally, the lower-right-corner Riemann sum over m=\mu and n=\nu subintervals would be

\displaystyle\sum_{m=1}^\mu\sum_{n=1}^\nu\left(7\frac{2m}\mu+5\left(\frac{4n-4}\nu\right)^2\right)\frac{2-0}\mu\frac{4-0}\nu=\frac83\left(101+\frac{21}\mu+\frac{40}{\nu^2}-\frac{120}\nu\right)

Then taking the limits as \mu\to\infty and \nu\to\infty leaves us with an exact volume of \dfrac{808}3.

7 0
3 years ago
Show that 6 is a quaint number.
Alika [10]

Answer:

6=2+2+2

Step-by-step explanation:

-In mathematics, a quaint number is a number that can be written as the sum of two or more  prime numbers.

-The multiple divisors of 6 in a factor tree are 2,2 and 2

-6 can thus be written as 2+2+2:

6=2+2+2

-Hence 6 is a quaint number

6 0
3 years ago
five of 25 girls on the alden middle school team are seventh-grade find the percentage of the seventh graders on the team
Yanka [14]

5/25 =

5/25 * 4/4 = 20/100

percent means out of 100

20 percent

5 0
3 years ago
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